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GB/T 9204-2008 English PDF

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GB/T 9204-2008: Dead centre
Status: Valid

GB/T 9204: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 9204-2008English209 Add to Cart 3 days [Need to translate] Dead centre Valid GB/T 9204-2008
GB/T 9204.1-1988English199 Add to Cart 2 days [Need to translate] Dead centre--Parameter Obsolete GB/T 9204.1-1988

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Basic data

Standard ID GB/T 9204-2008 (GB/T9204-2008)
Description (Translated English) Dead centre
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard J52
Classification of International Standard 25.060.20
Word Count Estimation 9,984
Date of Issue 2008-08-11
Date of Implementation 2009-02-01
Older Standard (superseded by this standard) GB/T 9204.1-1988; GB/T 9204.2-1988; GB/T 9204.3-1988
Adopted Standard ISO 298-1973, MOD
Regulation (derived from) National Standard Approval Announcement 2008 No.14 (Total No.127)
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary This standard specifies the types and parameters fixed top, accuracy test, technical requirements, test methods, logo and packaging. This standard applies to the lathe, but also applies to the use of other tools like top.

GB/T 9204-2008: Dead centre

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Dead centre ICS 25.060.20 J52 National Standards of People's Republic of China Replacing GB/T 9204.1-1988, GB/T 9204.2-1988, GB/T 9204.3-1988 Fixed top (ISO 298. 1973, Machinetools-Lathecenters- Sizesforinterchangeability, MOD) Posted 2008-08-11 2009-02-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This revised standard adopts the International Standard ISO 298. 1973 "machine lathe center interchangeability dimensions" (in English). This standard and ISO 298. 1973 Main technical differences and the reasons given in Appendix A. This standard replaces GB/T 9204.1-1988 "fixed top parameter", GB/T 9204.2-1988 "fixed top precision" and GB/T 9204.3-1988 "fixed top technical conditions." This standard and GB/T 9204.1 ~ GB/T 9204.3-1988 compared to the major differences are. --- The GB/T 9204.1-1988, GB/T 9204.2-1988 and GB/T 9204.3-1988 integrated as a standard; --- Simplifying the presentation of the top (GB/T 9204.1-1988 type of type Ⅰ ~ Ⅵ, this standard type and type Ⅰ ~ Ⅲ Figure 4); --- Increased taper parameters (see Table 1); --- Increased fixed top tip angle α of 75 °, 90 ° in two sizes (see Table 1). Appendix A of this standard is an informative annex. The standard proposed by China Machinery Industry Federation. The standard metal cutting machine tools by the National Standardization Technical Committee (SAC/TC22) centralized. This standard was drafted. Xian machine factory annex, Yantai Institute of machine tool accessories. The main drafters of this standard. Kang trillion, Li Yuqiu, Pang Yongfeng, said when the celebration. This standard replaces the standards previously issued as follows. --- GB/T 9204.1-1988; --- GB/T 9204.2-1988; --- GB/T 9204.3-1988. Fixed top

1 Scope

This standard specifies the fixed top types and parameters, precision inspection, technical requirements, test methods, marking and packaging. This standard applies to the lathe, but also applicable to other machines similar top.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB/T 1443-1996 and machine tool shank with clips from the cone (eqv ISO 296.1991) GB/T 1804-2000 General tolerances for linear and angular dimensions without individual tolerance tolerance (eqv ISO 2768-1. 1989) GB/T 17421.1-1998 Test code for machine tools - Part 1. under no-load or finishing conditions Geometric accuracy of machines (Eqv ISO 230-1.1996) JB/T 2326-2005 model designation of machine tool accessories JB/T 3207-2005 machine tool accessories packaging technology JB/T 5563-1991 Metal Cutting Machine conical surface coloring method test and evaluation Preparation of JB/T 9935-1999 Machine Tool Accessories random technical documents

3 Type and Parameters

Type 3.1 --- Ⅰ type common top, shown in Figure 1; --- Ⅱ type missing the top half, shown in Figure 2; --- Ⅲ type with pressure out of the top nut, shown in Figure 3. 3.2 Parameter 3.2.1 Top parameters shown in Figure 1, Figure 2, Figure 3 and Table 1. Caudal peduncle cone size shall comply GB/T 1443-1996 of. Figure 1 Ⅰ type

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